Pile fabric and method of weaving same



June 13, 1933. F. w. MOSTERTZ 8 r FILE FABRIC AND METHOD OF WEAVING SAME Filed July 10, 1931 mVENToR Patented June 13, 1933 UNITED STATES FERDINAND W. MOSTERTZ, OF PHILADELPHIA, PENNSYLVANIA' PILE FABRIC AND METHOD OF WEAVING SAME Application filed my 10,

The present invention relates to an improved pile fabric and the method of weaving the same, particularly with an uncut The fabric so Sh0wn is made in many different ways, but this particular type of fabric, as the invention, has for its purpose to provide a method of weaving, which will make considerably more production than is known by the older methods.

A very important idea in this improved method is the use of upper and lower shuttles, certain picks being inserted by the upper shuttles, while certain other picks are inserted by the lower shuttles, the upper shots being used for making the pile loops, which are formed by two separate groups of threads.

The old and known methods of weaving the character of fabric as described and ilpile.

lustrated herein are set forth in a German Patent Number 78,192 and also in a United States Letters Patent Number 1,382,516, but in the methods in these patents only one shot or filling is thrown at a time in the follow- 5 ing manner:

Shot one from left to right, shot three from right to left, and shot four from left to right, etc.

Another purpose of this invention is to 0 avoid such methods as in the German and United States patents above identified, and to accomplish this, as previously stated it is the aim to utilize two shuttles simultaneously in conjunction with a double shed system.

It is to be understood that the particulars herein given are in no way limitative, and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in the construction of the appliance according to circumstances.

The invention comprises further features and combination of parts to be hereinafter set forth, shown in the drawing and claimed.

In the drawing 1931. Serial No. 549,980.

Figure 1 is a cross section view through a piece of pile fabric with an uncut pile showing the elimination of the pile gauge.

Figure 2 is a cross sectional view through the same character of fabric, the use of the pile gauge.

Figure 3 is a sectional view through a piece offabric also illustrating the elimination of the floating filling threads 2 removed.

Figure 4 is a diagram showing the method of the shots and the use of the upper and lower shuttles, with the double shed system.

Figure 5 is a detail perspective diagram showing the direction threads or picks.

Referring to the drawing and especially Figure 1, 1 and 2 identify the ground warp threads, while 4 thread, which when the piece of fabric is complete is uncut. The ground warp threads 1 and 2 pass under and over the filling or weft threads 5, which are shot by the lower shuttle; said ground passing over and under the filling or weft threads cross at points between the filling or warp threads.

The pile warp threads 4 pass under every other one of the filling or weft threads 5, and 75 then over every other one of the upper filling or weft threads 6. Where thepile warp threads pass over the upper filling or weft threads 6 alternate with the passing of the same threads under threads 5. In weaving this type of fabric the upper filling or weft threads are shot by the upper shuttle. Every other one of the upper filling or weft threads 6a are loose and floating, when the fabric is completed, as in Figure 3.

In Figure 1 the pile loops formed by the pile warp threads 4 are formed around or over certain of the filling or weft threads 6, as

previously stated, and are, consequently only but showing pile gauge, and showing the loose of filling of weft identifies the pile warp Warp threads in the filling or weft and therefore can be removed 5 alternate upper filling or as high as the thickness of the filling threads permit.

Referring to Figure 2 it will be noted that the upper and lower filling or weft threads have a supporting warp or pile gauge 7 separatin them, for the purpose of increasing the height of the pile loops of the pile warp threads.

Referring to Figure 4 it is obvious that the upper and lower shuttles 8 and 9 operate simultaneously, and for such a purpose a double shed system may be applied, of which Figure 4 is an illustration, illustrating the ground warp threads 1 and 2 and the'pile warp thread 4. Also referring to Figure 4 it will be noted that a roof 10 is fastened to a reed 11 for the purpose of preventing the loom with wefts, alternate upper ones of which bein loose or floating, the lower shuttle for the ower layer of filling or ground weave, the upper shuttle for the upper layer of filling or so called loop or frise shot, Weaving ground war threads over and under a lower tier of filling or weft threads, weaving an uncut ile warp under certain of the filling or we t threads, and then removing said alternate loose or floating weft threads.

In testimony whereof I aflix my signature.

FERDINAND W. MOSTERTZ.

upper shutt1e8 from flying out when the loose floating filling or weft thread or pick 6a is shot. The shuttles 8 and 9 are shot simultaneously, bottom shed, the upper shuttle 8 through the upper shed inserting pick or lower filling or weft thread 5 and the upper filling 0r weft thread or picks 6, these operations being performed simultaneously when going over one way, and then inserting the alternate filling or weft threads or picks simultaneously when coming back.

The invention having been set forth, 'what is claimed is:

1. A single piece of frise unfinished fabric having an uncut pile, said fabric comprising upper and lower filling 0r weft threads, filling or weft threads being floating and removable, ground warp threads 'being arranged totie in the lower filling or weft threads, and pile loop warpthreadsbeing engaged under every other one of the lower filling or weft threads and over the upper weft threads alternately with relation to the removable floating filling weft threads, said upper and lower filling or weft threads adapted to receive pile gauges therebetween, whlch are removable and thereby form uncut pile loops.

2. In a method of weaving a single piece of unfinished frise uncut pile fabric with longitudinal pile gauges forming pile loops, the steps consisting in throwing simultanethe lower shuttle 9 through the ously upper and lower shuttles of a double [shuttle loom with wefts, alternate upper ones of which being loose or floating the lower shuttle for the lower layer of filling or ground weave, the upper shuttle for the upper layer of filling or the so called loop or frise shot,

weaving ground warp threads over and under the lower tier of filling or weft threads, weaving an uncut pile warp under alternate weft threads of the lower tier.

3. Ina method for weaving a single piece of frise uncut pile fabric with longitudinal pile gauges for forming pile loops, the steps consisting in throwing simultaneously upper and lowershuttles of a double shuttle 

